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Effect of NaCl on lipid content of plasma membranes isolated from roots and cell suspension cultures of the dicot halophyte Kosteletzkya virginica (L.) Presl. by K. C. Blits; J. L. Gallagher is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

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Lipid concent was examined in plasma membrane fractions isolated by discontinuous sucrose density-gradient centrifugation from both salinized and unsalinized roots and cell suspension cultures of Kosteletzkva virginica (L.) Presl., seashore mallow, a halophytic dicot. The distribution of marker enzymes along the gradient indicated that plasma membranes of roots and cell cultures accumulated primarily at the 34%/45% interface. Total sterol and phospholipid content increased significantly in plants and cell suspensions grown on salinized nutrient media. In addition, K. virginica plasma membranes were constitutively rich in sterols, and a high sterol-to-phospholipid ratio was maintained or elevated under saline conditions. These results are discussed in relation to membrane composition as a mechanism involved in the cellularly based salt tolerance of K. virginica.

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Author

K. C. Blits; J. L. Gallagher

Publisher

Springer; Springer-Verlag; Springer Verlag; Springer Science and Business Media LLC (ISSN 0721-7714)

Published

1990

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)